CN203730803U - Self-detection seal valve - Google Patents
Self-detection seal valve Download PDFInfo
- Publication number
- CN203730803U CN203730803U CN201420069217.3U CN201420069217U CN203730803U CN 203730803 U CN203730803 U CN 203730803U CN 201420069217 U CN201420069217 U CN 201420069217U CN 203730803 U CN203730803 U CN 203730803U
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- valve
- valve body
- seal
- hole
- self
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Abstract
The utility model provides a self-detection seal valve. The self-detection seal valve comprises a valve body, wherein a shutter and a valve seat are arranged in the valve body, and the shutter and the valve seat are sealed in a matching mode to form a close cavity. The self-detection seal valve is characterized in that at least one detection close hole communicated with the close cavity is formed in the valve body, a detection close hole communicated with a close space or a seal end surface is formed in the valve body, and after the valve is closed, close sealing is performed by detecting whether substances flow out of the close hole, so that the purpose of self-detection seal is achieved.
Description
Technical field
The invention relates to a kind of valve, and especially a kind of valve body, flashboard have annular sealed chamber's (groove), and valve body has the detection closed channel that leads to annular sealed chamber, forms the self-inspection seal valve of sealing chamber after closing between two sealing surfaces.
Background technique
after existing flashboard valve is closed, valve self can not self-inspection, after leakage, can not seal, and when requiring when tight-closed, as the hazmat such as poisonous, harmful, inflammable, explosive, need install two valves additional, a door once, a secondary door.
Summary of the invention
In order to overcome above-mentioned shortcoming, the invention provides a kind of self-inspection seal valve, is provided with the detection blind hole communicating with enclosed space or seal face on valve body, after valve closing, whether flows out material according to detecting blind hole, carry out close encapsulation, thereby realize the object of self-inspection sealing.
For achieving the above object, the technical program is as follows:
A kind of self-inspection seal valve, comprises valve body, is provided with flashboard and the valve seat of fitted seal with it in valve body, when valve seat and flashboard fitted seal, forms and seals chamber, on valve body, offer seal therewith that chamber communicates detect at least together blind hole.
Further, described lock seat with the end face of flashboard fitted seal on be provided with monitoring sealing circular groove, valve body is provided with the monitoring closed hole that monitoring sealing circular groove communicates therewith.
Further, described flashboard is Single disc, on the non-tight end face of Single disc, offers circular groove, the detection blind hole on valve body towards and communicate with circular groove.
Further, described detection blind hole is more than one.
Further, detect blind hole valve is housed outward, be connected with detection facility, closed conduit.
Further, the packing place of valve body is provided with packing and checks leak stopping circular groove, packing check leak stopping hole towards and check that with packing leak stopping circular groove communicates.
Further, the flange of valve body is provided with and checks that leak stopping circular groove, valve body are provided with and the flange inspection leak stopping hole that checks that leak stopping circular groove is connected.
Further, in valve body, be at least provided with the flashboard of two groups of series connection and the middle valve seat of cooperation, between adjacent two valve plates, form close encapsulation space, communicate and be provided with leak detection through hole with close encapsulation chamber.
Further, be provided with circumferential seal groove at valve seat with valve plate on the sealing surface coordinating, be provided with circumferential seal bar in circumferential seal groove, circumferential seal bar is stepped, and being wherein positioned at notch position is that little head end, bottom land position are stub end; Notch end inner side is provided with the steel wire position limit cycle for stopping stub end; Valve body is provided with the liquid filling hole communicating with circumferential seal groove.
Further, valve body is provided with the relief hole communicating with circumferential seal groove, wherein liquid filling hole is positioned at the inner side of the stub end of circumferential seal bar, relief hole is positioned at the outside of liquid filling hole, in the time of liquid filling hole fluid injection, circumferential seal bar outwards moves to steel wire position limit cycle and stub end at once, and circumferential seal bar and relief hole depart from, and liquid filling hole communicates with relief hole through circumferential seal groove.
Working principle and the working procedure of the invention are as follows:
The invention mainly comprises the valve body being connected with pipeline, is provided with one group or two groups of flashboards and the valve seat with flashboard fitted seal in valve body.
Basic functional principle of the present invention is as follows: rotation handwheel or the electronic gate valve that makes are in the closed position, between valve body and flashboard, form sealing chamber, valve body is provided with more than one detection blind hole and leads to sealing chamber, such as two, one is connected with detection facility, one is connected with closed conduit with threeway, is connected with recovery channel.
After gate valve in service is closed, can detect valve leak situation by detecting blind hole, as valve leak, leakage rate is little, can recycle from recovery channel pressure release, as need shutoff to leak, can be according to the composition that leaks goods and materials, with not mixing with leakage goods and materials, the not medium-tight of chemical reaction, time out of service, after closing gate valve, can carry out bulge test by detecting blind hole.
On sealing surface of seat corresponding to flashboard, be provided with separately monitoring sealing circular groove, the monitoring closed hole on valve body and monitoring seal circular groove and communicate and can detect or leak stopping.
Sealed packing place, is provided with and checks leak stopping circular groove and check that leak stopping hole communicates, and can carry out shutoff as packing leaks.
All flanges are all provided with and check leak stopping circular groove, and the inspection leak stopping hole on valve body is attached thereto, and the each portion of valve flange can arrange more than one detection closed hole, and one is connected with detection system, and one is connected with sealing channel, make the sealing of valve conduct monitoring at all levels.
Described flashboard in open mode, be provided with circumferential seal groove on valve seat and flashboard sealing surface, is provided with circumferential seal bar in circumferential seal groove, described circumferential seal bar is being at least inner concavity towards a side of circumferential seal groove; Circumferential seal bar is stepped, and being wherein positioned at notch position is that little head end, bottom land position are stub end; Notch end inner side is provided with the steel wire position limit cycle for stopping stub end; Valve body is provided with the liquid filling hole and the relief hole that communicate with circumferential seal groove, wherein liquid filling hole is positioned at the inner side of the stub end of circumferential seal bar, relief hole is positioned at the outside of liquid filling hole, in the time of liquid filling hole fluid injection, circumferential seal bar outwards moves to steel wire position limit cycle and stub end at once, circumferential seal bar and relief hole depart from, and liquid filling hole communicates with relief hole through circumferential seal groove.
Be provided with circumferential seal groove and circumferential seal bar, Stamping Steel Ribbon is designed to wedge shape or stepped, Stamping Steel Ribbon is divided into stub end and little head end, wherein stub end is positioned at bottom land, little head end is positioned at notch, communicate with seal groove and be provided with liquid filling hole and relief hole, in the time of fluid injection, hydraulic oil enters in liquid filling hole, Stamping Steel Ribbon is expanded extruding by inner concavity through sealing head stub end, now, by bottom land, to notch motion, (now Stamping Steel Ribbon not yet moves to relief hole and departs from Stamping Steel Ribbon, Stamping Steel Ribbon seals relief hole simultaneously), make the outermost end of Stamping Steel Ribbon be close to flashboard, thereby further strengthen sealing effect, if ram movement, after mutually departing from, the end of Stamping Steel Ribbon just can not touch the sealing plate of flashboard, continues after outwards motion if now continue topping up Stamping Steel Ribbon, and Stamping Steel Ribbon will depart from relief hole, be provided with after liquid filling hole, now liquid filling hole communicates with relief hole through seal groove, and Stamping Steel Ribbon just can not move forward, and after preventing flashboard rotation and departing from, misoperation is to topping up pushes Stamping Steel Ribbon deviate from seal groove in liquid filling hole problem always.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present application or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiments that record in the application, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing;
Fig. 1 is specific embodiment 1 structural representation;
Fig. 2 is specific embodiment 2 structural representations;
Fig. 3 is specific embodiment 3 structural representations;
Fig. 4 is circumferential seal groove and circumferential seal bar structural representation;
Fig. 5 is circumferential seal groove and circumferential seal bar pressure relief schematic diagram.
Embodiment
The correlation technique content of not addressing below all can adopt or use for reference prior art.
In order to make those skilled in the art person understand better the technological scheme in the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technological scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment who obtains under creative work prerequisite, all should belong to the scope of the application's protection.
Embodiment 1
As shown in Figure 1, a kind of self-inspection seal valve, comprises valve body 1, is provided with Single disc 2 in valve body, and the upper end of Single disc 2 is connected with valve rod 3, and valve rod 3 is positioned at outside valve body 1 and is provided with handwheel 5, is provided with packing_seal part 4 between valve rod and valve body.
The both sides of Single disc 2 are the valve seat 6 being fixed on valve body, the two ends of Single disc 2 and valve seat 6 fitted seal; When valve is during in closed condition, the inner side of Single disc 2 and valve body form sealing chamber.
Valve body 1 is provided with at least one of sealing therewith that chamber is connected and detects blind hole 7, detects principle as follows: in the time that the sealing surface fitted seal effect of flashboard 2 and valve seat 1 is bad, liquid will enter into sealing chamber, thereby will from detect blind hole 7, flow out.
The detection blind hole of the present embodiment is provided with two.
The face that Single disc 2 is positioned at sealing chamber is provided with inspection leak stopping circular groove 8 one, and in above-mentioned detection blind hole 7, at least one is communicated with circular groove.
The packing place of valve body 1 is provided with packing and checks leak stopping circular groove 41, packing check leak stopping hole towards and check that with packing leak stopping circular groove communicates, for detection of packing_seal effect, if there is leakage can carry out shutoff.
The flange of valve body is provided with flange and checks leak stopping circular groove 9, and valve body 1 is provided with flange and checks that the flange that leak stopping circular groove 9 is connected checks leak stopping hole, for detection of flange connections sealing effect, if there is leakage can carry out shutoff.
On valve seat, have monitoring sealing circular groove 61 with flashboard sealing surface on the sealing surface of seat coordinating, offer monitoring closed hole on valve body, monitoring sealing circular groove communicates with the monitoring closed hole on valve body.
Shown in Fig. 4,5, on valve seat and sealing surface flashboard fitted seal, be provided with circumferential seal groove 71, in circumferential seal groove, be provided with circumferential seal bar 72, described circumferential seal bar in the inner side towards circumferential seal groove and the outside that is positioned at notch be inner concavity; Circumferential seal bar is stepped, and being wherein positioned at notch position is that little head end, bottom land position are stub end; Notch end inner side is provided with the steel wire position limit cycle 73 for stopping stub end; Valve body is provided with the liquid filling hole 74 and the relief hole 75 that communicate with circumferential seal groove, wherein liquid filling hole is positioned at the inner side of the stub end of circumferential seal bar, relief hole is positioned at the outside of liquid filling hole, in the time of liquid filling hole fluid injection, circumferential seal bar outwards moves to steel wire position limit cycle and stub end at once, circumferential seal bar and relief hole depart from, and liquid filling hole communicates with relief hole through circumferential seal groove.Can be in the time of valve closing, by the inside fluid injection of liquid filling hole, circumferential seal groove outwards motion is further fitted with flashboard sealing surface, increases sealing effect.
Rotate handwheel or the electronic gate valve that makes in the closed position, between valve body and flashboard, form ring seal chamber, valve body is provided with more than one detection blind hole and leads to sealing chamber, and one is connected with detection facility, one is connected with closed conduit, and one is connected with recovery channel.After gate valve in service is closed, can detect valve leak situation by detecting blind hole, as valve leak, leakage rate is little, can recycle from recovery channel pressure release, as need shutoff to leak, can be according to the composition that leaks goods and materials, with not mixing with leakage goods and materials, the not medium-tight of chemical reaction, time out of service, after closing gate valve, can carry out bulge test by detecting blind hole.On sealing surface of seat corresponding to flashboard, be provided with separately monitoring sealing circular groove, the monitoring closed hole on valve body is connected with monitoring sealing circular groove, can detect or leak stopping.Sealed packing place, is provided with and checks leak stopping circular groove, can carry out shutoff as packing leaks.All flanges are all provided with and check leak stopping circular groove, and the inspection leak stopping hole on valve body is attached thereto, and the each portion of valve flange can arrange more than one inspection leak stopping hole, and one is connected with detection system, and one is connected with sealing channel, make the sealing of valve conduct monitoring at all levels.
Embodiment 2
Except for the following differences, other are identical with embodiment 1.
The present embodiment adopts double-flashboard, has therefore cancelled the circular groove on Single disc, is provided with the sealing chamber forming between detection blind hole and double-flashboard and communicates.But on sealing surface of seat, be provided with equally monitoring sealing circular groove, be provided with and check leak stopping circular groove at the sealing surface of flange, on valve body, be provided with and detect hole, be provided with packing at packing place and check leak stopping circular groove.
Embodiment 3
In valve body, be provided with two groups of flashboards, three valve seats of two Single discs, middle valve seat is dual face seals; Or three valve seats of two groups of double-flashboards, or three valve seats of one group of double-flashboard of a Single disc, middle valve seat is dual face seals, and both sides flashboard cuts out rear middle valve seat and forms sealing chamber 10, and valve body is provided with the detection blind hole 11 that leads to sealing chamber 10.
After two groups of flashboards in service cut out, the middle valve seat between two groups of flashboards forms sealing chamber, can detect valve leak situation by detecting blind hole, as valve leak, leakage rate is little, can recycle from recovery channel pressure release, as need shutoff to leak, can be according to the composition that leaks goods and materials, with not mixing with leaking goods and materials, the not medium-tight of chemical reaction, time out of service, close after two groups of flashboards, can carry out bulge test by detecting blind hole.Two groups of flashboards can open simultaneously or cut out, also can operations of a standard-sized sheet, realize the using and the reserved.
Claims (10)
1. a self-inspection seal valve, comprises valve body, is provided with flashboard and the valve seat of fitted seal with it in valve body, forms sealing chamber when valve seat and flashboard fitted seal, it is characterized in that, on valve body, offer seal therewith that chamber communicates detect at least together blind hole.
2. self-inspection seal valve according to claim 1, is characterized in that: described valve seat with the end face of flashboard fitted seal on be provided with monitoring sealing circular groove, valve body is provided with the monitoring closed hole that monitoring sealing circular groove communicates therewith.
3. self-inspection seal valve according to claim 1 and 2, is characterized in that: described flashboard is Single disc, on the non-tight end face of Single disc, offers circular groove, the detection blind hole on valve body towards and communicate with circular groove.
4. self-inspection seal valve according to claim 1, is characterized in that: described detection blind hole is more than one.
5. self-inspection seal valve according to claim 4, is characterized in that: detect blind hole valve is housed outward, be connected with detection facility, closed conduit.
6. self-inspection seal valve according to claim 1, is characterized in that: the packing place of valve body is provided with packing and checks leak stopping circular groove, packing check leak stopping hole towards and check that with packing leak stopping circular groove communicates.
7. self-inspection seal valve according to claim 1, is characterised in that: the flange of valve body is provided with and checks that leak stopping circular groove, valve body are provided with and the flange inspection leak stopping hole that checks that leak stopping circular groove is connected.
8. self-inspection seal valve according to claim 1, is characterised in that: in valve body, be at least provided with the flashboard of two groups of series connection and the middle valve seat of cooperation, between adjacent two valve plates, form close encapsulation chamber, communicate and be provided with detection blind hole with close encapsulation chamber.
9. self-inspection seal valve according to claim 1, be characterised in that: on the sealing surface coordinating with valve plate at valve seat, be provided with circumferential seal groove, in circumferential seal groove, be provided with circumferential seal bar, circumferential seal bar is stepped, and being wherein positioned at notch position is that little head end, bottom land position are stub end; Notch end inner side is provided with the steel wire position limit cycle for stopping stub end; Valve body is provided with the liquid filling hole communicating with circumferential seal groove.
10. self-inspection seal valve according to claim 9, be characterised in that: valve body is provided with the relief hole communicating with circumferential seal groove, wherein liquid filling hole is positioned at the inner side of the stub end of circumferential seal bar, relief hole is positioned at the outside of liquid filling hole, in the time of liquid filling hole fluid injection, circumferential seal bar outwards moves to steel wire position limit cycle and stub end at once, and circumferential seal bar and relief hole depart from, and liquid filling hole communicates with relief hole through circumferential seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420069217.3U CN203730803U (en) | 2014-02-18 | 2014-02-18 | Self-detection seal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420069217.3U CN203730803U (en) | 2014-02-18 | 2014-02-18 | Self-detection seal valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730803U true CN203730803U (en) | 2014-07-23 |
Family
ID=51200878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420069217.3U Expired - Fee Related CN203730803U (en) | 2014-02-18 | 2014-02-18 | Self-detection seal valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836219B (en) * | 2014-02-18 | 2019-07-19 | 潘健 | Self-test sealing valve |
-
2014
- 2014-02-18 CN CN201420069217.3U patent/CN203730803U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836219B (en) * | 2014-02-18 | 2019-07-19 | 潘健 | Self-test sealing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: QI AIFENG Free format text: FORMER OWNER: PAN JIAN Effective date: 20140707 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qi Aifeng Inventor before: Pan Jian |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: PAN JIAN TO: QI AIFENG |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140707 Address after: Sheng Ping Jie Taishan District 271000 in Shandong Province, Tai'an City, No. 39 Patentee after: Qi Aifeng Address before: 6, West House, 1 floor, West building, Longtan Road, Taishan District, Tai'an, Shandong, 271000 Patentee before: Pan Jian |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20220218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |